<storage_type id="single_HDD" model="SSD" size="4kB">
<model_prop id="Bwrite" value="30MBps" />
<model_prop id="Bread" value="100MBps" />
<storage_type id="single_HDD" model="SSD" size="4kB">
<model_prop id="Bwrite" value="30MBps" />
<model_prop id="Bread" value="100MBps" />